<<I wonder if they have ever done this study with airplanes. >>
Indeed they have, Kate. And it's not pretty. There's a syndicated radio show called "The Don & Mike Show". I don't listen to it now, but I have heard it on occassion when I worked with a guy who swore by it. And sometimes it WAS pretty funny. Anyway, they had this guy who came on the show from time to time called "Dr. Germ", and he would give facts from studies like the ones Norma shared. Planes are a hotbed for germs, mostly because the air does not circulate. Whatever germs are expelled/sneezed/coughed in there, continue to float around. Airline pillows are the worst - lay your head on one at your own peril. And make sure those trays get wiped down before you touch them, they can be potentially covered with various viruses and diseases. They took some scrapings and what they revealed would make a frequent flyer lose their lunch. Bob NP: Buddy/Julie Miller, "Dirty Water" (a must for Emmylou fans)